Question :Taxa which are commonly absent in a classification of Gymnospermae and Monocotyledonae in Bentham and Hooker's classification

Question :Taxa which are commonly absent in a classification of Gymnos

1.	Question :Taxa which are commonly absent in a classification of Gymnospermae and Monocotyledonae in Bentham and Hooker's classification
Answer» SUB classes, series sub classes, COHORT series, cohort cohort, NATURAL ORDER ANSWER :B